WinGD WARTSILA RT-flex58T-D, Руководство по обслуживанию

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Maintenance
1132 − 2/A1
RT-flex58T-D
Winterthur Gas & Diesel Ltd.
14/ 14
⇒ While holding the lower bearing shell in position by means of turning-out de-
vice 94118 (94118A), lifting tool 94116 can be removed.
⇒
Due to the dead weight, the lower bearing shell slides now slowly into main
bearing girder 6 by about 90 _ whereby the turning-out device must be fol-
lowed up correspondingly.
Attention! In order to prevent the risk of jamming under no circumstances let the
bearing shell slide uncontrolled into the bearing girder!
⇒ Lead both ropes of turning-out device 94118 (94118A) to the other side, and
connect these with lifting yoke 94119 as described for the removal.
⇒ Using corresponding ropes (same arrangement as for the removal), turn the
lower bearing shell completely into bearing girder until it seats at Allen screw
12 previously driven in on exhaust side.
⇒ Remove turning-out device 94118 (94118A) and guide 94115.
⇒
Fit and tighten Allen screw 12 (Fig. ’A’) to arrest the lower bearing shell on fuel
side.
⇒ Release the pressure at HP oil pump 94931 (Fig. ’H’) and lower the crankshaft
completely.
⇒
Remove immediately all the tools from the crankcase.
The bearing clearances and the crank deflection must be measured after a new
lower bearing shell has been fitted and the bearing cover has been tightened (see
3103 − 1 ).
7. Fitting of main bearing covers
Fitting the bearing cover is carried out analogously to the removal but in the re-
verse sequence, whereby attention must be paid to the following:
D
Upper bearing shell 10 (Fig. ’A’) is placed in bearing cover 2, and fixed with two
Allen screws 11. Pay attention to the cleanliness during fitting!
D The bearing cover must not be interchanged, and always be installed in the
same bearing girder.
D Always use device 94111 for fitting a bearing cover, as described in section 2.
D
Pay attention to locating dowel pin 9 on fuel side during fitting the bearing cov-
er (Fig. ’A’)!
D Remove all plugs from oil bore 7.
D Oil bore 7 in the bearing girder must be clean and without particles of white
metal.
D Carefully clean all contact surfaces at bearing cover 2 and bearing girder 6.
D After fitting of bearing cover, elastic studs 4 are to be tensioned as described
in 1132 − 1 , and the clearances to be checked according to 0330 − 1 ’Crankshaft
and Main Bearing’.
After assembly, check if lubricating oil is supplied to the main bearing with the oil
pump in operation!
Removal and Fitting of a Main Bearing
2013
CHECK
CHECK